/ Dictionary / Index C coypu: Meaning and Definition of Find definitions for: coy•pu Pronunciation: (koi'p), [key] — pl. -pus, -pu. a large, South American, aquatic rodent, Myocastor (or Myopotamus) coypus, yielding the fur nutria. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: coypu (Thesaurus) Coyote State coz Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language